Looks like the same frame I have, 16", as mikee says it's light.
Probably same age as well or a year or 2 earlier.
Mine weighed 22.91lbs with Manitou 3's, USE susp seatpost and full complement of gears. I'd no idea it was as light as that, with a bit of effort in choices of component this frame is great for building a light bike.
Free bermp.